Dust escape free blackboard eraser

The invention relates to a dust escape free blackboard eraser. A brush plate is arranged on the blackboard eraser, a dust collector is arranged below the brush plate, a dust storage box is arranged below the dust collector, and a movable bottom plate is arranged at the tail end of the dust storage b...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	TAN SHENGLAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES FOR WRITING OR DRAWING ARTICLES FOR WRITING OR DRAWING UPON BUREAU ACCESSORIES PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
Online-Zugang:	Volltext bestellen
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